Page 8 of 10 MOUSE BATTERY VERY LOW 22m ago Connect to USB to recharge soon. AQA Physics P6.5 AQA Physics P6.5 GCSE Student practical GCSE Student practical Class ..."; Class ........"; Date ........"; (1 mark) b boil 1.2 kg of liquid ethanol b Which requires the most energy to vaporise it: 5 kg of water, 5 kg of liquid lead, or 5 kg of liquid ethanol? (1 mark) c Which requires the most energy to raise its temperature by 3 .C: 200 g of water, 200 g of liquid lead, or 200 g of liquid ethanol? (3 marks) ......" (1 mark) melt 500 g of solid lead d Which requires the most energy: melting 1.5 kg of ice, boiling 1.5 kg of water, or raising the temperature of 1.5 kg of water by 1 .C? (1 mark) (3 marks) 3 Both specific latent heat and specific heat capacity involve energy changes for 1 kg of substance. Explain how they are different from each other d boil 500 g of liquid lead. (2 marks) 4 Explain why a drop of liquid ethanol evaporates from your hand more quickly (2 marks) than a drop of water of the same volume. Extension 6 Calculate how much energy is needed to turn 1 kg of ice into water vapour, if (2 marks) the ice starts at a temperature of 0 .C. Calculate the energy required to: a melt 1.2 kg of solid ethanol (3 marks) (6 marks) Oxford University Press 2016 www.oxfordsecondary.co.uk/acknowledgements Oxford University Press 2016 www.oxfordsecondary.co.uk/acknowledgements This resource sheet may have been changed from the original. 8 This resource sheet may have been changed from the original